Synthesis and characterization of three novel alkoxysilanes and their uses in the acrylate functionalized alkyds through free radical copolymerization

• ATSE, ATST and MPTS have been prepared successfully as novel macromonomers.
• Acrylic groups were hybrid with alkyds via free radical chemistry.
• The resins had good storage stability and can be used in the architectural paints.
• ATSE, ATST and MPTS are very suitable for modification of alkyd resins.

Three novel allyl-containing alkoxysilanes, allyl 3-(trimethoxysilyl) propyl ether (ATSE), allyl 3-(trimethoxysilyl) propyl thioether (ATST) and 4-(trimethoxysilyl) propyloxy-4-methacryloxydiphenyl sulfone (TSMS) were prepared by the condensation reaction of allyl alcohol with chloropropyltrimethoxysilane (CPTS), allyl chloride with (3-mercaptopropyl)-trimethoxysilane (MPTS) and methacrylic acid with bis (4-hydroxyphenyl) sulfone and also with CPTS, respectively. Also acrylic groups were hybrid with alkyds via free radical chemistry. The alkyd comprised soybean oil, glycerol and phthalic anhydride. To closely model acrylated-alkyds, a mixture of acrylic monomers were copolymerized with the alkyd including: methyl methacrylate (MMA), butyl acrylate (BA), methacrylic acid (MAA), and alkoxysilanes ATSE, ATST and/or MPTS.

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